In the ranking of top 25 most-downloaded paid apps (see below), games dominate the list, led by ”Angry Birds.” Three other versions of the popular game from Rovio are in the top 25. In fact, the first five in the ranking are all games, including “Fruit Ninja,” “Doodle Jump,” and “Cut the Rope.”

That changes at No. 6 with WhatsApp, one of the most popular messaging apps in the world at 99 cents.

Rounding out the top 10 are Camera+, which offers an upgrade to iPhone’s standard camera software, and three more games: “Words With Friends,” one of Zynga 's most consistent performers; “Tiny Wings,” a game from German developer Andreas Illiger; and “Angry Birds Space,” from Rovio.

Apple published the rankings as part of a promotion heading into Apple’s 50 billionth download on the App Store. There are more than 850,000 apps in Apple’s App Store, and Apple has paid out more than $9 billion to developers.